public override void Add(SelfAccumulateableEventArgs e)
{
var other = e as NamedObjectCollectionChangedEventArgs;
if (other == null)
{
throw new ArgumentOutOfRangeException("Argument e should be of type NamedObjectCollectionEventArgs");
}
if (!object.ReferenceEquals(_item, other._item))
{
throw new ArgumentOutOfRangeException("Argument e has an item which is not identical to this item. This should not happen since Equals and GetHashCode are overriden.");
}
// MultipleChanges overrrides everything
if (_operation.HasFlag(NamedObjectCollectionChangeType.MultipleChanges))
{
return;
}
if (other._operation.HasFlag(NamedObjectCollectionChangeType.MultipleChanges))
{
_operation = NamedObjectCollectionChangeType.MultipleChanges;
_item = MultipleChangesItem;
_newItemName = null;
_oldItemName = null;
return;
}
// Normal changes
_newItemName = other._newItemName;
_operation |= other._operation;
if (other._operation.HasFlag(NamedObjectCollectionChangeType.ItemAdded))
{
_operation = _operation.WithClearedFlag(NamedObjectCollectionChangeType.ItemRemoved);
if (_oldItemName != _newItemName)
{
_operation = _operation.WithSetFlag(NamedObjectCollectionChangeType.ItemRenamed);
}
}
else if (other._operation.HasFlag(NamedObjectCollectionChangeType.ItemRemoved))
{
_operation = _operation.WithClearedFlag(NamedObjectCollectionChangeType.ItemAdded);
_operation = _operation.WithClearedFlag(NamedObjectCollectionChangeType.ItemRenamed);
}
}
public override void Add(SelfAccumulateableEventArgs e)
{
var other = e as NamedObjectCollectionChangedEventArgs;
if (other == null)
throw new ArgumentOutOfRangeException("Argument e should be of type NamedObjectCollectionEventArgs");
if (!object.ReferenceEquals(this._item, other._item))
throw new ArgumentOutOfRangeException("Argument e has an item which is not identical to this item. This should not happen since Equals and GetHashCode are overriden.");
// MultipleChanges overrrides everything
if (this._operation.HasFlag(NamedObjectCollectionChangeType.MultipleChanges))
return;
if (other._operation.HasFlag(NamedObjectCollectionChangeType.MultipleChanges))
{
this._operation = NamedObjectCollectionChangeType.MultipleChanges;
this._item = MultipleChangesItem;
this._newItemName = null;
this._oldItemName = null;
return;
}
// Normal changes
this._newItemName = other._newItemName;
this._operation |= other._operation;
if (other._operation.HasFlag(NamedObjectCollectionChangeType.ItemAdded))
{
this._operation = this._operation.WithClearedFlag(NamedObjectCollectionChangeType.ItemRemoved);
if (_oldItemName != _newItemName)
this._operation = this._operation.WithSetFlag(NamedObjectCollectionChangeType.ItemRenamed);
}
else if (other._operation.HasFlag(NamedObjectCollectionChangeType.ItemRemoved))
{
this._operation = this._operation.WithClearedFlag(NamedObjectCollectionChangeType.ItemAdded);
this._operation = this._operation.WithClearedFlag(NamedObjectCollectionChangeType.ItemRenamed);
}
}
